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1 September, 04:25

If f (x) = 2x^2 - 10, find f (5).

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  1. 1 September, 08:20
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    Sub 5 for every x

    f (5) = 2 (5) ^2-10

    f (5) = 2 (25) - 10

    f (5) = 50-10

    f (5) = 40
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